US9828855B2 - Bolt plate magazine and centralizer - Google Patents

Bolt plate magazine and centralizer Download PDF

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Publication number
US9828855B2
US9828855B2 US14/693,507 US201514693507A US9828855B2 US 9828855 B2 US9828855 B2 US 9828855B2 US 201514693507 A US201514693507 A US 201514693507A US 9828855 B2 US9828855 B2 US 9828855B2
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plate
bolt
holder
magazine
plates
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US20160305243A1 (en
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Yves Nelson
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1311854 Ontario Ltd
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1311854 Ontario Ltd
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • E21D20/006—Machines for drilling anchor holes and setting anchor bolts having magazines for storing and feeding anchoring-bolts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors

Definitions

  • the present invention relates generally to mining equipment and, in particular, to rock bolting.
  • ground support e.g. rock bolts and screening
  • rock bolts e.g. rock bolts and screening
  • rock bolters Several different types of rock bolts may be used but all require that holes be drilled in the rock first. This is done with equipment known as rock bolters. These are mobile units with a bolting head attached. To drill a hole in the rock to install ground support, the bolting head is placed against the rock face (which is called “stinging the face”) and then a hole is drilled into the rock. The unit is then indexed to install the rock bolt as ground support.
  • one aspect of the present disclosure provides a novel rock bolting technique that enables plates to be loaded automatically, thereby improving speed and productivity in rock bolting operations.
  • Embodiments of the present disclosure also utilizes each plate as a centralizer, thereby eliminating the need for a separate centralizer for the rock bolter.
  • one inventive aspect of the present disclosure is a rock bolting system comprising a frame supporting a movable bolter feed rail, a bolter feed slidable on the bolter feed rail, the bolter feed having a bolt driver for driving a rock bolt into a drilled hole in a rock face, a plate magazine for storing a plurality of bolt plates, and a plate holder for holding a plate to enable the plate to function as a centralizer to centralize the bolt.
  • Another inventive aspect of the present disclosure is a method of installing a rock bolt using a rock bolting system having a frame supporting a movable bolter feed rail, the method comprising storing a plurality of bolt plates in a plate magazine, holding a plate in a plate holder to enable the plate to function as a centralizer to centralize the bolt, and driving the rock bolt into a hole in a rock face.
  • a rock bolting system comprising a frame supporting a movable bolter feed rail, a bolter feed slidable on the bolter feed rail, the bolter feed having a bolt driver for driving a rock bolt into a drilled hole in a rock face, a plate magazine for storing a plurality of bolt plates, and a plate holder for holding a plate to enable the bolt to engage the plate.
  • FIG. 1 depicts the system indexed into a bolt loading position
  • FIG. 2 depicts the carousel turning into the loading position
  • FIG. 3 depicts a plate loading configuration
  • FIG. 4 depicts a plate centralizer position
  • FIG. 5 depicts a bolt loaded position
  • FIG. 6 depicts the system indexed out to the bolting position
  • FIG. 7 depicts the bolt advancing through the plate with the plate held in the plate holder
  • FIG. 8 depicts the plate after it has been pushed beyond the plate holder so that the plate thereafter travels with the advancing bolt
  • FIG. 9 depicts a rotary plate loader assembly
  • FIG. 10 depicts a hydraulically or pneumatically fed plate magazine
  • FIG. 11 depicts a spring-fed plate magazine
  • FIG. 12 depicts a linearly actuated plate feed
  • FIG. 13 depicts a linearly actuated plate loader assembly
  • FIG. 14 is a first perspective view of a manual plate loading centralizer loading a plate
  • FIG. 15 is a second perspective view of the manual plate loading centralizer loading the plate
  • FIG. 16 depicts the manual plate loading centralizer with the plate locked into place
  • FIG. 17 depicts the manual plate loading centralizer providing the centralizer function to centralize the bolt
  • FIG. 18 is a first perspective view of the manual plate loading centralizer depicting the plate unloaded
  • FIG. 19 is a second perspective view of the manual plate loading centralizer depicting the plate unloaded
  • FIG. 20 depicts a manual loader assembly on a rock bolting system
  • FIG. 20A depicts an enlarged view (detail A) of the manual loader assembly on the forward end of the rock bolting system
  • FIG. 20B is a front view of the rock bolting system showing the manual loader assembly
  • FIG. 20C shows a holder in an open position
  • FIG. 20D shows the holder in a closed position
  • FIG. 20E is a cross-sectional view along section E-E;
  • FIG. 20F is an enlarged view (detail F) of the holder holding a plate
  • FIG. 21A is a perspective view of a linear plate loader assembly loading the plate in the holder
  • FIG. 21B is a perspective view of the linear plate loader assembly shifting the plate in the holder toward a bolt-receiving position
  • FIG. 21C is a perspective view of the linear plate loader assembly with the plate and holder in the bolt-receiving position
  • FIG. 21D is a front view of FIG. 21A ;
  • FIG. 21E is a front view of FIG. 21B ;
  • FIG. 21F is a front view of FIG. 21C ;
  • FIG. 22A is a perspective view of a rotary plate loader assembly in loading position
  • FIG. 22B is a perspective view of a rotary plate loader assembly rotating toward from the loading position toward the bolt-receiving position;
  • FIG. 22C is a perspective view of a rotary plate loader assembly in the bolt-receiving position
  • FIG. 22D is a front view of FIG. 22A ;
  • FIG. 22E is a front view of FIG. 22B ;
  • FIG. 22F is a front view of FIG. 22C .
  • embodiments of the present disclosure provides a novel rock bolting system and method.
  • the system and method utilize a plate magazine (or case) that stores bolt a plurality of bolt plates.
  • the system also includes a mechanism to load the plates, either automatically (i.e. by hydraulic or pneumatic actuation) or manually, into a bolting position in which the plate optionally acts as a centralizer to centralize the bolt.
  • the plate may act as a centralizer in one set of embodiments.
  • the plate need not perform a centralizing function in which case the bolt merely engages the plate to carry the plate to the rock face.
  • This novel system and method provide an alternate way of loading bolts which improves the bolt capacity on the bolting carousel. Improving the bolt capacity reduces the downtime attributed to loading bolts. This increases the productivity of the bolter unit. By innovatively using the plate as the centralizer, this novel system also reduces the number of parts required to centralize the bolt.
  • the rock bolting system depicted by way of example in the figures includes a plate magazine.
  • this magazine may be spring loaded, hydraulic cylinder loaded, or pneumatic cylinder loaded.
  • a lock pin holds the plates in place until actuated by the arm moving back into loading position. Once in loading position, the pin releases and the spring feeds the next plate into the arm. Once the arm is pushed into centralizer position, the pin is re-activated to hold the remaining plates in the magazine.
  • the manual style plate centralizer design also has an optional plate magazine holder/dispenser which the operator can store plates near the front end of the feed beam. This makes the plates easily accessible for the operator.
  • the system also includes a centralizer plate holder that enables the plates to be used as a centralizer, eliminating the need for a separate centralizer unit.
  • the centralizer plate holder either houses magnets to hold the plates in position, or uses a polyurethane seal to hold the plates into position until they are pushed out by the drifter (bolting feed).
  • the centralizer plate holder can either be moved linearly or in rotary motion by hydraulic, electric, or manual actuation.
  • the centralizer plate holder also enables the operator to load plates into a centralizer position on the front of the beam, so that the plate can be used as a centralizer.
  • the plate holder will hold the plates into position firmly by either hydraulic, pneumatic, or mechanical means, until the drifter pushes through the mechanism and onto the wall.
  • the system may include a stinger plate designed to enclose the entire mechanism in order to shield the components from debris and to ensure that the plate will not fall out of the system no matter which orientation the feed is in.
  • the rock bolting system designated generally by reference numeral 10 includes a frame 12 .
  • the frame may be attached or mounted to a wheeled vehicle (e.g. a jumbo drilling rig or bolting jumbo) for transporting the rock bolting system inside a mine to the rock face where ground support is to be installed.
  • the frame 12 supports a drill feed rail 14 upon which a drill feed can slide.
  • the drill feed advances a drill steel 16 .
  • the drill feed rail may have a pad 18 at its forward end.
  • the frame also supports a bolter feed rail 20 .
  • a bolter feed 25 is slidable via a carriage 21 on the bolter feed rail 20 .
  • the bolter feed has a bolt driver for driving a rock bolt 30 into a drilled hole in a rock face.
  • the bolter feed has a pad 22 .
  • a stinger 23 with a stinger pad 24 extends hydraulically to sting (i.e. engage) the rock face to stabilize the rock bolting system during drilling and bolting operations.
  • a rotatable carousel 32 rotates to load each bolt into the bolting feed.
  • An indexing mechanism may be provided to index the bolting feed into position after the hole has been drilled. The indexing mechanism also rotates the drilling feed out of position to make room for the bolting feed.
  • the rock bolting system 10 includes a plate magazine 40 for storing a plurality of bolt plates 50 .
  • Bolt plates are also known as bearing plates or washers. As shown by way of example in the figures, the plates may be substantially square (although other shapes such as rectangular plates may be used in variants).
  • Each plate has a central hole dimensioned to receive the bolt. It should be noted that although a central hole is depicted the hole may be off-center in other embodiments.
  • Each plate may, as shown by way of example in the illustrations, have a tapered (domed) region extending in a rearward direction beyond the plane of the plate.
  • any other suitable type of bolt plates may be utilized in other embodiments such as, for example, flat plates, slotted plates and ribbed plates.
  • the magazine 40 may store the plurality of plates 50 in a face-to-face configuration as shown in FIGS. 5-8 .
  • the rock bolting system 10 also includes a plate holder 60 for holding a plate 50 to enable the plate 50 to function as a centralizer to centralize the bolt 30 .
  • the plate holder is also referred to as a centralizer plate holder.
  • the bolter head indexes into a bolt-loading position.
  • the bolter head indexes into the bolt-loading position after the drill string has drilled a hole in the rock face.
  • a bolting carousel shown by way of example in FIG. 2 then rotates to load the bolt into position.
  • the centralizer plate holder moves into the plate loading position as shown in FIG. 3 in front of the plate magazine where the next plate is loaded into place.
  • the centralizer plate holder moves into the centralizer position as shown in FIG. 4 for the bolting operation.
  • the drill then pushes the bolt through the plate enough to hold the bolt in position as shown in FIG. 5 .
  • the bolting head then indexes into the bolting position as shown in FIG. 6 .
  • FIG. 7 depicts the bolt advancing through the plate with the plate held in grooves of the plate holder.
  • the bolt 30 has a thicker rear portion 31 of larger diameter than the hole in the plate. This thicker portion 31 of the bolt abuts the plate because its diameter is too wide to slide through the hole in the plate. The bolt thus dislodges the plate from the holder.
  • FIG. 8 depicts the plate after it has been forced out of the holder. The unrestrained plate thereafter travels with the advancing bolt.
  • FIG. 9 depicts a rotary plate loader assembly in accordance with one embodiment of the invention.
  • Nine plates 50 are shown in the magazine 40 with a tenth plate 50 being held in a rotary holder 60 .
  • the number of plates may be varied in other embodiments.
  • a coil spring 42 is illustrated in FIG. 9 as a means to urge the plates toward the exit, any other suitable tensile device may be substituted.
  • FIG. 10 depicts a hydraulically or pneumatically fed plate magazine 40 in accordance with another embodiment of the invention.
  • An actuator 62 drives a push plate 64 to advance the stack of plates toward the holder 60 .
  • FIG. 11 depicts a spring-fed plate magazine 40 in accordance with another embodiment of the invention.
  • the spring presses against the push plate 64 to force the stack of plates toward the holder 60 .
  • FIG. 12 depicts a linearly actuated plate feed in accordance with another embodiment of the invention.
  • a spring 42 mounted inside the magazine 40 forces the stack of plates 50 toward the exit.
  • An actuator 62 displaces the holder 60 and a plate 50 held within the holder 60 along an axis that is orthogonal (perpendicular) to the axis defined by the spring.
  • FIG. 13 depicts a linearly actuated plate loader assembly in accordance with another embodiment of the invention.
  • Manual loading is similar to the automatic loading using the plate magazine; however, instead of loading the plate using an actuation mechanism, the plate is loaded manually by the operator.
  • a back plate 62 is pulled back away from front portion 64 to open the plate holder as depicted by way of example in FIG. 14 .
  • the operator then loads the plate 50 into position by hand as depicted in FIG. 15 .
  • the back plate can be locked into position to lock the plate into the holder as shown in FIG. 16 so that it does not fall out or move during any orientation of the bolter.
  • the bolt is then loaded into the plate where the plate will act as a centralizer to hold the bolt in position as depicted in FIG. 17 .
  • the holder which is composed of the back plate 62 and the front portion 64 , is supported on a base 66 that fits inside the bolter feed rail 20 .
  • the base 66 is disposed in the most forward position possible in the rail, i.e. abutting the rear face of the disk-shaped pad support 22 a.
  • FIG. 20 Additional details of the manual loading assembly are shown in FIG. 20 as well as FIGS. 20A-20E .
  • the back plate and front portion are shown in open and closed positions, i.e. loading and loaded positions.
  • FIGS. 21A-21F Additional details of the manual loading assembly are shown in FIGS. 21A-21F .
  • This set of figures shows how the magazine releases a plate into a holder that then slides transversely into position for receiving the bolt through its hole.
  • FIGS. 22A-22F Additional details of the manual loading assembly are shown in FIGS. 22A-22F .
  • This set of figures shows how the magazine releases a plate into a holder that rotates about an axis of rotation parallel to the drill feed. The holder rotates the plate into alignment with the rock bolt.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
US14/693,507 2015-04-16 2015-04-22 Bolt plate magazine and centralizer Active US9828855B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2888184 2015-04-16
CA2888184A CA2888184C (fr) 2015-04-16 2015-04-16 Magasin de plaques boulonnees et centralisateur

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US9828855B2 true US9828855B2 (en) 2017-11-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11391153B2 (en) * 2017-08-28 2022-07-19 J.H. Fletcher & Co. Autonomous roof bolter and related methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE542845C2 (sv) 2018-05-28 2020-07-14 Epiroc Rock Drills Ab Rigg för bergbultning och förfarande vid rigg för bergbultning
AU2021355516A1 (en) 2020-10-01 2023-06-01 Joy Global Underground Mining Llc Bolter
CN113863970B (zh) * 2021-12-03 2022-04-01 中国矿业大学(北京) 转轮式锚杆施工机械手和台车
EP4194140A1 (fr) * 2021-12-09 2023-06-14 Hilti Aktiengesellschaft Magasin, ainsi que machine-outil doté d'un magasin

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218893A (en) * 1962-05-22 1965-11-23 Gardner Denver Co Roof-bolting machine
US3670387A (en) * 1970-12-16 1972-06-20 Tetsuya Nagao Nut and washer feeding device
US4226559A (en) * 1977-08-31 1980-10-07 Atlas Copco Aktiebolag Rock bolting apparatus
US5556235A (en) 1993-10-20 1996-09-17 Cannon Industries, Inc. Rock bolter
US5720582A (en) * 1996-06-27 1998-02-24 Cannon Industries, Inc. Bolt delivery system with linear bolt magazine
US6302310B1 (en) * 1998-11-13 2001-10-16 Frederick W. Lamb Staple or nail gun assembly, cap feeding device for staple or nail gun, and cap assembly
US6413019B1 (en) * 1999-10-21 2002-07-02 Oldenburg Cannon, Inc. Turret rock bolter with stinger/centralizer
US20040177979A1 (en) * 2001-06-18 2004-09-16 Russell Mineral Equipment Pty Limited Rock-bolting apparatus and method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218893A (en) * 1962-05-22 1965-11-23 Gardner Denver Co Roof-bolting machine
US3670387A (en) * 1970-12-16 1972-06-20 Tetsuya Nagao Nut and washer feeding device
US4226559A (en) * 1977-08-31 1980-10-07 Atlas Copco Aktiebolag Rock bolting apparatus
US5556235A (en) 1993-10-20 1996-09-17 Cannon Industries, Inc. Rock bolter
US5597267A (en) 1994-10-19 1997-01-28 Cannon Industries, Inc Bolt delivery system
US5720582A (en) * 1996-06-27 1998-02-24 Cannon Industries, Inc. Bolt delivery system with linear bolt magazine
US6302310B1 (en) * 1998-11-13 2001-10-16 Frederick W. Lamb Staple or nail gun assembly, cap feeding device for staple or nail gun, and cap assembly
US6413019B1 (en) * 1999-10-21 2002-07-02 Oldenburg Cannon, Inc. Turret rock bolter with stinger/centralizer
US20040177979A1 (en) * 2001-06-18 2004-09-16 Russell Mineral Equipment Pty Limited Rock-bolting apparatus and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Office Action dated Apr. 26, 2016 in corresponding Canadian Application No. 2,888,184.
Office Action dated Apr. 26, 2016 in corresponding Canadian Patent Application No. 2,888,184, 3 pages.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11391153B2 (en) * 2017-08-28 2022-07-19 J.H. Fletcher & Co. Autonomous roof bolter and related methods

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CA2888184A1 (fr) 2016-10-16
US20160305243A1 (en) 2016-10-20
CA2888184C (fr) 2017-09-26

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